mfd: Use mfd cell platform_data for rdc321x cells platform bits

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.

Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/rdc321x-southbridge.c b/drivers/mfd/rdc321x-southbridge.c
index 10dbe63..809bd4a 100644
--- a/drivers/mfd/rdc321x-southbridge.c
+++ b/drivers/mfd/rdc321x-southbridge.c
@@ -61,12 +61,14 @@
 		.name		= "rdc321x-wdt",
 		.resources	= rdc321x_wdt_resource,
 		.num_resources	= ARRAY_SIZE(rdc321x_wdt_resource),
-		.mfd_data	= &rdc321x_wdt_pdata,
+		.platform_data	= &rdc321x_wdt_pdata,
+		.pdata_size	= sizeof(rdc321x_wdt_pdata),
 	}, {
 		.name		= "rdc321x-gpio",
 		.resources	= rdc321x_gpio_resources,
 		.num_resources	= ARRAY_SIZE(rdc321x_gpio_resources),
-		.mfd_data	= &rdc321x_gpio_pdata,
+		.platform_data	= &rdc321x_gpio_pdata,
+		.pdata_size	= sizeof(rdc321x_gpio_pdata),
 	},
 };